Home / 86,004,423.30-128,922,654.15-76,934,496.90

Finding the Fourth Proportional to 86,004,423.30, 128,922,654.15 and 76,934,496.90

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Solution

The fourth proportional to 86,004,423.30, 128,922,654.15 and 76,934,496.90 is: 115,326,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,004,423.30 : 128,922,654.15 = 76,934,496.90 : x
  2. Step 2: Convert to fraction form
    86,004,423.30/128,922,654.15 = 76,934,496.90/x
  3. Step 3: Cross multiply
    86,004,423.30x = 128,922,654.15 × 76,934,496.90
  4. Step 4: Simplify right side
    86,004,423.30x = 9,918,599,536,042,948
  5. Step 5: Solve for x
    x = 9,918,599,536,042,948/86,004,423.30
  6. Step 6: Final answer
    x = 115,326,621.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.